<html>
  <head>
    <link href="../css/c3.css" rel="stylesheet" type="text/css">
  </head>
  <body>
    <div id="chart"></div>

    <script src="https://d3js.org/d3.v5.min.js" charset="utf-8"></script>
    <script src="../js/c3.js"></script>
    <script>
      var chart = c3.generate({
        data: {
          columns: [
            ['data1', 30, 200, 100, 400, 150, 250],
            ['data2', 130, 100, 140, 200, 150, 50]
          ],
          types: {
            data1: 'spline',
            data2: 'spline'
          }
        },
        spline: {
          interpolation: {
            type: 'monotone', // 'cardinal' is default
          },
        },
      });
    </script>
  </body>
</html>
